[PATCH 11/29] IB/mlx4: Use kmalloc_array() in three functions
From: SF Markus Elfring
Date: Sat Feb 18 2017 - 16:07:05 EST
From: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 18 Feb 2017 10:32:32 +0100
Multiplications for the size determination of memory allocations
indicated that array data structures should be processed.
Thus use the corresponding function "kmalloc_array".
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@xxxxxxxxxxxxxxxxxxxxx>
---
drivers/infiniband/hw/mlx4/main.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index ba6af84cc236..350c9148340e 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -304,7 +304,9 @@ static int mlx4_ib_add_gid(struct ib_device *device,
ctx->refcount++;
}
if (!ret && hw_update) {
- gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
+ gids = kmalloc_array(MLX4_MAX_PORT_GIDS,
+ sizeof(*gids),
+ GFP_ATOMIC);
if (!gids) {
ret = -ENOMEM;
} else {
@@ -359,7 +361,9 @@ static int mlx4_ib_del_gid(struct ib_device *device,
if (!ret && hw_update) {
int i;
- gids = kmalloc(sizeof(*gids) * MLX4_MAX_PORT_GIDS, GFP_ATOMIC);
+ gids = kmalloc_array(MLX4_MAX_PORT_GIDS,
+ sizeof(*gids),
+ GFP_ATOMIC);
if (!gids) {
ret = -ENOMEM;
} else {
@@ -2828,9 +2832,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
goto err_counter;
ibdev->ib_uc_qpns_bitmap =
- kmalloc(BITS_TO_LONGS(ibdev->steer_qpn_count) *
- sizeof(long),
- GFP_KERNEL);
+ kmalloc_array(BITS_TO_LONGS(ibdev->steer_qpn_count),
+ sizeof(long),
+ GFP_KERNEL);
if (!ibdev->ib_uc_qpns_bitmap)
goto err_steer_qp_release;
--
2.11.1